TY - GEN
T1 - Temporal aspect of three visual search tasks by using TMS
AU - Matsuoka, Akira
AU - Kawamura, Yuuji
AU - Ge, Sheng
AU - Ueno, Shoogo
AU - Iramina, Keiji
PY - 2007
Y1 - 2007
N2 - Transcranial magnetic stimulation (TMS) is applied as an important method to investigate human cognitive process. In this study, we used TMS to investigate temporal aspect of the right posterior parietal cortex involved in visual search. Subjects were required to respond as quickly and accurately as possible by pressing a mouse button to indicate the presence or absence of the target, and the reaction times were measured. Subjects received three experiments which the TMS stimulus onset asynchronies (SOA) were set as 100, 150 and 200ms after visual stimulus presentation. When we examined the effects of TMS on pop-out visual search, there was a significant elevation in target-present reaction time when the TMS pluses were applied 150ms after visual stimulus presentation. However for the other SOA cases and conjunction visual search task, there was no significant difference between no-TMS and TMS conditions. Therefore, we considered that the right posterior parietal cortex was involved in the pop-out visual search at about 150ms after visual stimulus presentation.
AB - Transcranial magnetic stimulation (TMS) is applied as an important method to investigate human cognitive process. In this study, we used TMS to investigate temporal aspect of the right posterior parietal cortex involved in visual search. Subjects were required to respond as quickly and accurately as possible by pressing a mouse button to indicate the presence or absence of the target, and the reaction times were measured. Subjects received three experiments which the TMS stimulus onset asynchronies (SOA) were set as 100, 150 and 200ms after visual stimulus presentation. When we examined the effects of TMS on pop-out visual search, there was a significant elevation in target-present reaction time when the TMS pluses were applied 150ms after visual stimulus presentation. However for the other SOA cases and conjunction visual search task, there was no significant difference between no-TMS and TMS conditions. Therefore, we considered that the right posterior parietal cortex was involved in the pop-out visual search at about 150ms after visual stimulus presentation.
UR - https://www.scopus.com/pages/publications/57649180582
UR - https://www.scopus.com/pages/publications/57649180582#tab=citedBy
U2 - 10.1109/IEMBS.2007.4353401
DO - 10.1109/IEMBS.2007.4353401
M3 - Conference contribution
C2 - 18003067
AN - SCOPUS:57649180582
SN - 1424407885
SN - 9781424407880
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 4751
EP - 4754
BT - 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
T2 - 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Y2 - 23 August 2007 through 26 August 2007
ER -